Sony Ericsson txt Pro (CK15i) vs Samsung Galaxy S21 Ultra (SM-G998B/DS 128GB)
Side by side comparison between Sony Ericsson txt Pro vs Samsung Galaxy S21 Ultra phones, differences, pros, cons and full specifications. What's the better?
,
vs
6.8"
AMOLED
AMOLED
1440x3200
108
MP
MP
40mp
12GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy S21 Ultra (SM-G998B/DS 128GB)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
4 Advantages 
36 Advantages | 6 Common items in both devices |
| Capacitive |
| Accelerometer |
| Ambient light sensor |
| Proximity sensor |
| FM (RDS) / FM |
| Scratch-resistant glass / Gorilla Glass Victus |
| + specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| Sony Ericsson txt Pro (CK15i) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Model | txt Pro (CK15i) | Galaxy S21 Ultra (SM-G998B/DS 128GB) |
| Other model names | Sony Ericsson txt Pro CK15, Sony txt Pro | Galaxy S21 Ultra 5G (SM-G998B/Dual-SIM) |
| Country or region available |  (Global, International) | (Global, International) |
| Brand | Sony Ericsson | Samsung |
| Release date | 7/1/2011 | 1/29/2021, Announced: 1/14/2021 |
| Depth | 18 millimeters (0.71 inches) | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 52 x 93 millimeters (2.05 x 3.66 in) | 75.6 x 165.1 millimeters (2.98 x 6.5 in) |
| Weight | 100 grams (3.5 ounces) | 227 grams (7.95 ounces) |
| Build, materials | feature not registered | Aluminum frame, glass front/back |
| Protection against water and others | Not supported | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant |
📲 Display | ||
| Sony Ericsson txt Pro (CK15i) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Display type | TFT LCD | Dynamic AMOLED |
| Screen size | 3" inches | 6.8" inches |
| Screen-to-body ratio | ~53% (screen-to-body ratio) | ~89.4% (screen-to-body ratio) |
| Display resolution | 240x400 pixels | 1440x3200 pixels (20:9) |
| Touchscreen | Capacitive Single touch 1-point | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 155 PPI | 516 PPI |
| Colors | 260 thousand | 16 million |
| Scratch-resistant glass | Scratch-resistant glass | Gorilla Glass Victus |
| Refresh rate | feature not registered | 120Hz |
| Display features | feature not registered | 1500nits[peak] HDR10+ Always-On Display |
🤖 Operating System | ||
| Sony Ericsson txt Pro (CK15i) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| System version | Proprietary OS | Android 11 |
| Firmware update | feature not registered | Android 14 |
| User Interface | feature not registered | One UI 3.1 / 4.1 / 5.1 / 6.0 |
⚙️ Processor | ||
| Sony Ericsson txt Pro (CK15i) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Chipset | 32bit | 64bit: Samsung Exynos 2100 (5nm) |
| CPU | Single-core, 1 processor: Single-core PNX-4910 (Single-core) | Octa-core, 3 processors: 1x 2.9GHz ARM Cortex-X1 (Single-core) 3x 2.8GHz ARM Cortex-A78 (Triple-core) 4x 2.2GHz ARM Cortex-A55 (Quad-core) |
| GPU graphical controller | feature not registered | ARM Mali-G78 MP14 (854MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 657150 (v8), 727634 (v9) Geekbench: 3457 (v5.2) GFXBench: 51fps (ES 3.1 onscreen) |
💽 Memory and storage | ||
| Sony Ericsson txt Pro (CK15i) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| RAM memory | 64MB SDRAM | 12GB LPDDR5 |
| Internal storage | 256MB (100MB available) | 128GB (101GB available) UFS 3.1 |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Not supported |
📶 Mobile networks | ||
| Sony Ericsson txt Pro (CK15i) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM |
| Maximum Download / Upload | 0.236 Mbps | 5000/1920 Mbps |
| Network technology | 2G | 2G, 3G, 4G, 5G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | Not supported | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | Not supported | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41) VoLTE |
| Primary 5G network | Not supported | SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78) |
| Primary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | UMTS 850/900/1700/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41) VoLTE |
| Secondary data network | Not supported | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA |
📷 Camera | ||
| Sony Ericsson txt Pro (CK15i) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Back camera (main camera) | 3.1 megapixels | (quad camera) 108 megapixels 10MP periscope telephoto f/4.9240mm1/3.24"1.22µmPDAFOIS10x-optical-zoom 10MP telephoto f/2.470mm1/3.24"1.22µmPDAFOIS3x-optical-zoom 12MP ultrawide f/2.213mm1/2.55"1.4µmPDAFSuper-Steady-video |
| Main camera resolution | 2048x1536 pixels | 12000x9000 pixels |
| Video recording (primary) | QVGA (320x240) | 8K UHD (7680x4320) 24 fps |
| Flash | Not supported | LED flash |
| Focal aperture | feature not registered | f/1.8 (aperture) |
| Focal length | feature not registered | 26mm lens |
| Sensor size | feature not registered | 1/1.33" inches |
| Pixel size | feature not registered | 1.8µm pixel |
| Autofocus | Not supported | PDAF: phase detection autofocus on both cameras |
| Touch focus | Not supported | Supported |
| Image stabilization | feature not registered | OIS: Optical stabilization |
| Zoom | Only digital zoom | Digital and optical zoom |
| Face/smile detection | Not supported | Face detection, Smile detection |
| BSI sensor | Not supported | Supported |
| HDR | Not supported | HDR photo/video on both cameras |
| Camera extras | feature not registered | 4K@60fps 1080p@240fps 720p@960fps |
📸 Front camera | ||
| Sony Ericsson txt Pro (CK15i) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Front camera (secondary) | Not supported | 40 megapixels |
| Front camera resolution | Not supported | 7296x5472 pixels |
| Video recording (secondary) | Not supported | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.2 (aperture) |
| Focal length | feature not registered | 26mm lens |
| Sensor size | feature not registered | 1/2.8" inches |
| Pixel size | feature not registered | 0.7µm pixel |
🔉 Sound and multimedia | ||
| Sony Ericsson txt Pro (CK15i) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Loudspeaker | Supported | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG |
| Active noise cancellation | Not supported | 2 microphones or more |
| Radio | FM (RDS) | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.263 | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Sony Ericsson txt Pro (CK15i) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| USB | MicroUSB 2.0 | USB 3.2 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | Type-C reversible connector |
| TV output | Not supported | USB Type-C (reversible) |
| Bluetooth | 2.1 + A2DP | 5.2 + A2DP/LE |
| WiFi | 802.11 b/g [wifi3] (2.4GHz) | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | Not supported | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Sony Ericsson txt Pro (CK15i) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gesture Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband) |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Sony Ericsson txt Pro (CK15i) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Battery type | LiPo: li-ion polymer (Removable) BST-43 | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 1000 mAh | 5000 mAh |
| Charger, watts | Wired charging | 25W Wired fast charging USB Power Delivery 3.0 |
| Inductive / wireless charging | feature not registered | 15W Qi wireless charging (Qi/PMA) 4.5W Reverse wireless charging |
| Talk time autonomy | 5.2 hours | feature not registered |
| Standby | 400 hours (16.7 days) | feature not registered |
➕ Other features | ||
| Sony Ericsson txt Pro (CK15i) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| Call control | Voice recorder | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Retractable QWERTY keyboard | Not supported |
| Miscellaneous | • Colors: Black, White, Pink • Facebook and Twitter • Google Mail and Google Talk • Java framework | • Colors: Phantom Black, Silver, Titanium, Navy, Brown • Samsung Pay (Visa, MasterCard) • Samsung DeX • Stylus pen support |
☢️ Radiation rate | ||
| Sony Ericsson txt Pro (CK15i) | Galaxy S21 Ultra (SM-G998B/DS 128GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 0.24W/kg (head), 0.72W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.8W/kg (head) | 0.714W/kg (head), 1.58W/kg (body) |